Android TV - If Chromecast already active in background unable to cast

Configuration
1

I have an issue with my Sony X900H android tv.

If chromecast is active in background I can’t switch to it. So if I cast a dashboard, press back/open another app, if I cast again nothing happens. (the media shell probably updates in the background, but I can’t bring focus to it)

Is there a adb command that I can run?
For example: here the Activity in foreground is com.cony.dtv.tvx (just direct input from tv, but could be any other app like Netflix), and TV cant is showing that its already casting a dashboard.

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I ran a sys dump adb command and the media shell does show up as running in background. Running adb command to open the chromecast activity didnt seem to work either.

Theres a workaround where I send a ADB command to kill the mediaShell activity, but then I have to wait 7 seconds before I am able to cast again (I guess the chromecast starting up again), but its annoying to have to wait that long for a cast to happen (in addition to the 5-6 seconds it already takes to connect to Lovelace dashboard).

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I’ve also tried

adb shell am start -n com.google.android.apps.mediashell/org.chromium.chromecast.shell.CastWebContentsActivity -a android.intent.action.MAIN -c android.intent.category.LAUNCHER -f 0x10200000

and got response:

adb_response: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.google.android.apps.mediashell/org.chromium.chromecast.shell.CastWebContentsActivity }
Warning: Activity not started, its current task has been brought to the front

But despite what the warning says, it just killed my chomecast instance.